Hi everybody. I made this code for quadratic formula but it's not working as it should. I am learning "C language" so it's very simple code.

**Important: **It is working efficiently for "real and equal" and "real and equal" roots. But for "complex roots" it's not true for every value of a, b, c.

**Example: **for a=1,b=2,c=3; it prints "The first root = -1 + 1.414214 i"

and "The second root = -1 - 1.414214 i", which is accurate result.

But for a=2,b=3,c=4; it prints correct answer for imaginary part but "0.0000" for both the real parts and wrong results for other values. Please help

**Note: **Please don't post brand new code in reply, because I don't have full command on C language. Just make change where needed in my code and reply this post.

Regards: arslan20

Code:

#include<stdio.h>
#include<conio.h>
#include<math.h>
main()
{
int a,b,c,d;
float x1,x2;
printf("Enter value of a : ");
scanf("%d",&a);
printf("Enter value of b : ");
scanf("%d",&b);
printf("Enter value of c : ");
scanf("%d",&c);
d = pow(b,2) - 4 * a *c;
if(d==0)
{
printf("\nThe roots are real and equal");
x1 = -b/(2*a);
printf("\nThe first root = %f",x1);
printf("\nThe second root = %f",x1);
}
else
if(d>0)
{
printf("\nThe roots are real and unequal");
x1 = (-b+sqrt(d))/(2*a);
x2 = (-b-sqrt(d))/(2*a);
printf("\nThe first root = %f",x1);
printf("\nThe second root = %f",x2);
}
else
{
printf("\nThe roots are complex");
d = -d;
x1 = -b/(2*a);
x2 = sqrt(d)/(2*a);
printf("\nThe first root = %f + %f i",x1,x2);
printf("\nThe second root = %f - %f i",x1,x2);
}
getch();
}